Thomas de witt



naar ,swat

@anni chimica THOMAS DE WITT, OF DETROIT, `MIOHIGAN, ASSIGNOR TO JOHN T. MAX- SON, OF- DE WITT, IOWA Leners Paten: Nt. 102,511, dazed May 3, 18.70.

IMPROVEMENT IN PUMPS.

The Schedule referred to in these Letters Patent and making part of the game To all whom 'it may concern Be it known that I, THOMAS DE WITT, of Detroit, in the county of Wayne anti State of Michigan, have invented certain new and. useful Improvements in Pumps; and do hereby declare the following to be a full, clear, and exact description thereof; reference being had to the accompanying drawings and tothe letters of reference marked thereon.

The nature of 'my invention consists in the construction of perpendicularly operating valves in a pump and pump-plunger; and also in the manner of securing a glass lining for lthe plunger to operate in.

In `order to enable others skilled in the art to which -my invention appertains to make and use the same,1

will now proceed to describe itsconstruction and operation, referring to the annexed drawings which form a part of this specilcation, and in which- Figure l is a longitudinal vertical section of my pump, andl Figure 2`is a perspective view' of the lower section of the pump, on which the lower valve is placed.

, A represents the upper section of the pump in Which/the plunger works, and

B represents the lower section, in which the lower valve is placed.

The upper section A is provided with glass lining C, which is secured in the following manner: The lining is inserted from the lower end of the section A, and moved upward until it bears against a shoulder, a, formed for that purpose on the inside of the section. Under the lower end of the lining C, through the section A, is passed a bar, b, which is secured by means of wedge-keys d d, as shown in fig. l.

The plunger D is formed of a wooden ring, c, ot'

`suitable dimensions, having packing 'i around it anda ing the plunger-rod E. The two perpendicular rods,

ff, are connected by means of a bar, g.

The valve h of the plunger D is in the shape of a round cup or dish, the rim of which rests upon the ring e, while thevbowl -ol the same ts within said ring. This valve is provided with ears, through which the rods ff pass; and it has, also, in its center a rod, It, which passes up through the bar g. The valve 'h, it will be seen, thus works perpendicnlarly, being guided by the rods f f and k.

The valve in the lowersection `B is constructed and operates in precisely the same manner, h being the valve, k'the central rod, j" f the siderods, and g' the cross-bar.

Having' thus fully described my invention, What I claim as new, and desire to secure by Letters Patent, is

I. The glass lining C, shoulder a, bar b, and wedge-keys el al, substantially as herein set forth.

2. The combination of the sections A B, glass lining C, with bar b and keys d d, plunger I), and verti.-

cally-operating valves h h', all substantially as herein set forth.

THOMAS DE 'WITTE Witnesses: PETER GEUNTHER, NICHOLAS TIsLER.

secured by means of the' 

